Arctic Ice Area Similar To Early 1960’s And 1970’s

The graph below is a composite of a 1979 paper in the Journal of Physical Oceanography (red) the second IPCC report (black) and University of Illinois Arctic sea ice data. Current anomalies are a little lower than the early 1960’s and early 1970’s.

ScreenHunter_305 Feb. 22 10.20

journals.ametsoc.org/doi/pdf/10.1175/1520-0485(1979)009<0580%3AAAOASI>2.0.CO%3B2

arctic.atmos.uiuc.edu/cryosphere/timeseries.anom.1979-2008

h/t to Alec aka Daffy Duck

http://news.google.com/newspapers

About stevengoddard

Just having fun
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21 Responses to Arctic Ice Area Similar To Early 1960’s And 1970’s

  1. Justa Joe says:

    OT:
    Naked political propaganda from NASA. No scientific data just libtard manufactured talking points.
    http://climate.nasa.gov/scientific-consensus

    • Gary H says:

      Interesting make believe on that page, Justa Joe. At the very top, NOAA’s presentation states:

      “Ninety-seven percent of climate scientists agree that climate-warming trends over the past century are very likely due to human activities . .”

      Note the, “over the past century,” time frame. Then. they go on to quote what their chosen “leading scientific organizations worldwide” public statements.

      Statements from 11 orgs, agencies, etc., are listed on the page.
      Of the 11, 5 of the brief statements refer to a time period defined as, “the past 50 years,” “the past half century,” “since the middle 1900s,” “of the past 50 years,” “since the mid-20th century,” with one limiting it to, “in recent decades.”

      Looks like NOAA wants to push back the date for the “consensus” onset of AGW, from the mid-1900’s to the turn of the 20th Century.

      That would take care of that nasty issue with the earlier pre-anthropogenic natural global warming.

  2. Alec aka Daffy Duck says:

    You might also like this one
    Temps vs CO2, 1958 – 1977

    pdf http://journals.ametsoc.org/doi/pdf/10.1175/1520-0493(1978)106%3C0755%3AGTVSMA%3E2.0.CO%3B2

  3. NikFromNYC says:

    Now I’m bewildered, uh, has your site been hacked again? Your chart drops off a flat cliff but the text claims the bottom of the cliff is similar to the heights? It’s an inverted hockey stick, very supportive of climate alarm, no? Sea ice loss in your own chart is sudden and unprecedented.

  4. John B., M.D. says:

    Great find! I’m adding the article to my file. Figure 5 noted on p. 6/585.

  5. nomoregore says:

    Much of the most radical tampering in the temp record began around 2000. So, I’ve never had any faith in their sea ice construct. How many times have we seen it suffer an “adjustment” just as it was about to cross the mean?

  6. Dave N says:

    I’ll bite.. where does pre-satellite era data come from? Were polar bears employed to survey the ice area?

  7. Dmh says:

    The recent data about the Arctic ice seems strange because it’s the first time that we see all these oscillations with such detail, but it’s clear that the ice has been recovering since 2008.
    2007 was the only year that the ice stayed at levels close to the record minimum for the entire year. 2011 was close to 2007 in this regard.
    All the other years since 2008 have shown some recovery during the winter or early spring, and in 2013 also the summer. The best recent years after 2013 are 2008 and 2009.
    The connection with solar radiations is quite evident.
    With some luck we could be back to 2000 levels this year, and 2001-levels in 2015.
    The ice extent seems to vary as a stable forced periodic system and we’re almost at the point where we can kind of “prove” this with the data.

  8. I see no recovery, which would be a longer term analysis anyway. What I do see is that 2013 summer ice was less than 2007.

    Interesting fact: whenever the minmum extent record is broken in summer, ice reformation to the following winter will also happen at a record rate. Figuring out why that is stregthens your brain.

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